Dental Equipment Holiday Shutdown Procedures

Dental Equipment Holiday Shutdown Procedures
December 12, 2022 shane

The holiday break is quickly approaching – protect your equipment during holiday shutdown with our preventative maintenance protocols guide!

The holiday season is upon us, and staff and patients across Australia are slowly but surely getting ready for their holidays.

Some emergency dental practitioners are running skeleton staff over the holidays, but others are closing down for some hard-earned rest and relaxation.

Now is the time to do your annual equipment checks and services. Following the correct shut-down procedures is critical to ensure that your equipment lasts as long as possible, and you get the best value for money from your dental equipment in the long-term.


The shut-down procedure for suction units is one of the most important. After completing daily cleaning with Pulijet (for Cattani units) or Orotol (for Durr units), you should run the suction for at least 5-10 mins with the cannula(s) open in the surgery to help purge the lines of any remaining moisture/cleaner.

This will help prevent the unit from seizing when you resume usage.

Cattani Units

Durr Units


To prepare your compressor for the end-of-year dental shut-down procedure, simply drain the unit, and switch it off.




Quick steps to maintain W&H Steriliser if not in use for more than 7 days.

1. Open the steriliser service door.
2. Put a container below the steriliser (5 l (1.3 gal) minimum) and place the end of the drain tube in it.
3. To drain the used water, insert the drain tube connector in the grey port.
4. To drain the clean water, insert the drain tube connector in the blue port.
5. When the water has been completely drained, press the release button to remove the drain tube and close the service door.
6. Clean and Dry both tanks.

The water pump of the steriliser could be completely dry (running very loud), and this would require a manual pumping of the inlet water tube to prime the pump and let it start again. Should this occur, please call Dental Depot 1800 333 768.

1. Stop the inlet water to the water treatment system and to flush the cartridge with the proper flush button on the head. This will release the pressure and some water from the cartridge, but not all.
2. Depending on the quality of water, please check cartridge before use.



Autoclave Dental DepotEmpty double jacket You have the option of draining the water in the → double jacket steam generator easily via the program Draining in the SPECIAL menu. In order to do so, the autoclave is heated once, building up pressure in the double-jacket so that the water can be drained fully from the double jacket steam generator.

Switch off the autoclave in the program end graphic Drainage completed so that the autoclave does not feed water back into the double jacket.

If you would like to decommission the autoclave (put it out of operation) for a longer period, for instance because of holidays or a planned shut-down, proceed as follows:
– Switch the autoclave off at the mains switch.
– Pull the power plug from the wall socket.
– Drain and clean both clean and dirty tanks
– Leave the door ajar. This relieves the door seal from premature fatigue.
– Turn off the cooling water inlet and if applicable also the water feed of the water treatment unit.

Inactivity Status if longer than 3 months:
Conduct a vacuum test and thereafter an empty sterilisation with the Quick-Program S.


A-dec Chairs

Dental Deport | Dental Chair

There are no special requirements, and they can be left in any position. However, it’s best practice to leave them in the entry/exit position.

A-dec delivery systems – If they are not used for longer than a week, remove the couplings and motors to prevent existing debris in the lines causing blockages.

Then flush all water lines with a full bottle of water with an ICX Tablet. Once the bottle is empty continue to flush all the lines until only air is coming out. And don’t forget the triple syringes! This will minimise biofilm growing.

The emptied A-dec water bottle should be placed upside down on a paper towel to dry.

Once you are ready to begin using the systems again, perform a shock treatment to make sure the waterlines are cleaned and ready for use in accordance with local guidelines and resume daily use of A-dec ICX waterline treatment tablets.

A-dec Waterline Maintenance Guide:
If performing a shock treatment, refer to the official manufacturer’s recommendation.


A-dec Bleach Protocol

Care should be taken to assure the bleach to water ratio is correct.

Note: The attached protocol specifies household bleach with 5.25% sodium hypochlorite. The concentration of sodium hypochlorite in commercial bleach solutions available in different markets may vary. As long as the sodium hypochlorite is in the range of 5-8%, the protocol may be followed using 1/10 dilution. If the commercial bleach concentration is greater than 8%, the amount of bleach in the prepared solution should be reduced to achieve 0.5% to 0.8% in the mixed solution.

The solution only remains in the water lines for 10-30 minutes (best to target the lower end of this range)


  • Solution is purged with air and flushed with water through all hand pieces tubings and air/water syringes at the end of the treatment.
    Note: This last point is particularly important, otherwise the bleach solution could remain in one or more waterline for an extended period.If strictly followed, this protocol will not cause damage to the dental unit.There may be competitors offering other solutions for shock or maintenance treatment for our equipment however the above is the most current and correct manufacturer’s recommendation for DUWL maintenance procedure on A-dec equipment. As per attached guide A-dec recommends a 3- stage protocol, in Maintain, Monitor and Shock, for effective waterline care.


    Miele Thermal Washers

    Emptying the dispensing system

    Without emptying the dispensing system

    All other equipment providing it is all turned off from the mains (Plant room, X-rays etc.) there shouldn’t be any maintenance needed before closing.

    If you have any questions, please feel free to call Dental Depot.

    Dental Depot

    Ph: 07 3857 0011


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